Glue injection device capable of automatically replacing mold

The utility model provides a glue injection device capable of automatically replacing a mold, which can automatically drive the mold to rotate and replace and then automatically communicate the mold with an injection molding machine, can avoid manual mold replacement during working, improves the working efficiency, and comprises a base and the injection molding machine, an injection molding pipe is arranged at the front end of the injection molding machine, a pushing mechanism is arranged at the top of the base and connected with the injection molding machine, a supporting plate is arranged at the top of the base, a top plate is installed at the top of the supporting plate, a center rod is rotationally installed at the bottom of the top plate, a connecting plate is installed on the outer side of the center rod, and two movable mold mechanisms are arranged at the top of the connecting plate. A rotating mechanism is arranged at the top of the base and connected with a center rod, a lower mold plate is installed